Home / 677,954.90-1,017,335.55-257,273.30

Finding the Fourth Proportional to 677,954.90, 1,017,335.55 and 257,273.30

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Solution

The fourth proportional to 677,954.90, 1,017,335.55 and 257,273.30 is: 386,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,954.90 : 1,017,335.55 = 257,273.30 : x
  2. Step 2: Convert to fraction form
    677,954.90/1,017,335.55 = 257,273.30/x
  3. Step 3: Cross multiply
    677,954.90x = 1,017,335.55 × 257,273.30
  4. Step 4: Simplify right side
    677,954.90x = 261,733,274,155.82
  5. Step 5: Solve for x
    x = 261,733,274,155.82/677,954.90
  6. Step 6: Final answer
    x = 386,062.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.